Farm-hoist.



C.G.PURNBERG.

rum nors'r.

APPLIOATION FILED EA! 6, 1910.

965,806, Patented July 26,1910.

UNITED STATES PATENT OFFICE.

CHRISTIAN G. FURNBERG, OF OSGOOD, NORTH DAKOTA.

FARM-HOIS'I.

Specification of Letters Patent.

Patented July 26, 1910.

Application filed May 6, 1910. Serial No. 559,719.

signed particularly for farm hoists which are adapted to lift graintanks,wagon bodies, hay racks, and in fact to hoist articles of allcharacters about a farm. It contemplates the construction of a device ofthis nature which will be simple, and inexpensive in construction andwhich also may be taken apart for the purpose of storage.

With the above and other objects in view this invention consists in theconstruction, combination, and arrangement of parts, all as hereinaftermore fully described, claimed and illustrated in the accompanyingdrawings wherein Figure 1 is a perspective view of a farm hoistconstructed in accordance with the present invention; Fig. 2 is a sideelevation of the present invention; Fig. 3 is a fragmentary sectionillustrating the stationary pulley support.

Referring more particularly to the drawings A indicates in general thelongitudinal side supports to which is secured the upwardly extendingcrane hereinafter more fully described. Each side support A comprises across joint 10, said cross joint having threaded in the horizontal sides10 and 10 thereof the L-supportsll and 11 said L-supports forming incombination with the cross joint a U-shaped support. At the lowerterminal of the vertical arms of the L-supports 11 and 11 are formedthecars 12 between which are pivoted the wheels 13, said wheelsfacilitating the transporta tion of the hoist. A transverse bracing rod14 is interposed between the vertical arms of the L-supports 11 and 11and provides a means whereby be rigidified. A shaft 15 is mounted in apair of bearings 16 secured to the vertical arms of the L-supports 11and 11 on one of the side supports A, said shaft being provided at oneterminal with the crank 17, thus providing for the rotation of theshaft.

In order to provide a means whereby the hoisting rope may be secured tothe shaft an eye 18 is centrally secured to said shaft and is adapted torotate therewith. To prothe entire structure may.

vide a means whereby the crank may be retained in a stationary position,likewise the shaft, a bolt 19 is reciprocatingly mounted in the verticalsupport 11 of the side supporting member A carrying the shaft, and isadapted to project into the path of the crank, thus when it is desiredto secure the crank and shaft stationary the bolt 19 is so located thatthe crank will'bear against the same. i

A semi-circular crane20 provided with the straight arms-21 is mounted inthe upper of the vertical sides 10 of the cross joint 10 through theinstrumentality of threads formed in the lower terminals of the straightarms 21. A supporting and bracing bar 22 is mounted in the lowervertical side 10 of the cross joints 10, said bracing and'supporting barbeing bifurcated at its lower terminal. This bifurcation is engaged bythe V-sup ort 23 which passes-under the rod 22 and projects through thebend in the L-support 11 and 11 Where it engages'the converging braces24 which extend upwardly" and are secured to the straight portions 21 ofthe crane 20 by the bolt 25. The joint between the V-brace 23 and theconverging braces 24 is rigidly clamped by a nut threaded on theprojecting terminals of the V-brace. In order that the shaft 15 may becentrally supported and thus prevented from buckling a bearing 26 islocated on the rod 22 adjacent to the shaft 15 through which said shaftpasses and rotates.

A U-shaped support 27 is rigidly mounted centrally on the crane 20 by aset screw 28 and conforms with the contour of said crane, saidU-shapedmember having the terminals of these arms bent upwardly to formthe hooks 29 and 29*. A V-shaped brace 30 extends from the joint betweenthe converging braces 24: and the straight arms 21 of the crane over thehook 29 and provides a means whereby the tendency of the crane to buckleis reatly reduced.

5 stationary block pulley 31 is mounted on the hook 29 through whichpasses the hoisting rope or element 32 which carries at its lowerextremity the movable block pulley 33. This hoisting rope passes over apulley 34: mounted on the crane over the supporting side A which carriesthe shaft 15, thence to the eye 18 to which it is secured. Thus it willbe seen that upon rotatin the shaft 15 the rope 32 will be wound tereabout consequently raising the pulley 38 and as a result any articlewhich should be at tached thereto.

It will be seen from this construction that by the provision of thevarious braces the tendency of the device to buckle, break, or otherwisebend is practically eliminated. Furthermore, the present invention issimple in its construction and eliminates all of the objectionablecomplicated features of an invention of this nature heretofore.

A brace 34: is located on the crane 20 ad j acent to the top thereof toprevent the same from buckling when a load is lifted by the hoist. Alongitudinal brace 35 is also secured to the uprights located oppositeto the uprights carrying the hoisting shaft to retain said uprights in anormally perpendicular position.

Having thus described my invention, what is claimed as new is: V r

1. A hoist of the class described, comprising in combination verticalside supporting members consisting of jointed supports, a

supporting rod carried by the joint of said supports, and bracescooperating with said supporting rod, a crane carried by said verticalside supports, hoisting means carried by said crane, means carried byone of said side supports for operating said hoisting means, and bracescooperating with said crane and side support.

2. A hoist of the class described, comprising in combination verticalside supports, a crane carried by said vertical side supports, bracessecured to said crane, braces cooperating between said crane and saidvertical side support, hoisting means carried by said crane, and meanscarried by one of said vertical side supports for operating saidhoisting means.

In testimony whereof I aflix my signature in presence of two witnesses.

CHRISTIAN C. FURNBERG.

Witnesses:

WILLIAM YOUNG, JOHN Coonn,

